Oil burner



Nov. 25, i924. 1,516,797

A. G. sLocUM OIL BURNER Filed Feb. 9, 1923 y @2W MMM l v attoznnfb.

Patented Nov. 25, 1924.

TES

ARTHUR G. SL'OCUM, 0F ENSIGN. KANSAS.

OIL BURNER.

Application led February 9, 1923.

To all whom t may concern:

Be it known/that I, ARTHUR G. SLocUM, a citizen of the United States,residing at Ensign, in the county of Gray and State of Kansas, haveinvented certain new and use-- ful Improvements in Oil Burners, of whichthe following is a specification.

This invention relates to an oil burner and particularly to aconstruction embody` ing a vaporizing chamber heated by the burner forconverting the liquid fuel into a gaseous state and delivering the sameto the ignition openings. n

It has been customary in the prior art to provide vaporizing burnerswith superposed retorts heated thereby but under such conditions theliquid fuel is fed into direct contact with the walls of the retort andif said walls are not of sufficiently high temperature only a portion ofthe fuel is Vaporized and the remainder flows downward in a liquid forminto the burner so as to materially decrease the efficiency thereof andthe character of` flame secured.

Furthermore, in previous constructions the vaporization o-f the fuel tosecure the proper feed to the burner has been entirely dependent uponthe temperature of the re* tort and has lacked means for securing aneven degree of feed to the burner and for producing this feed under suchpressureas will secure a flame of the most efficient character.

The present invention removes the objections existing in priorconstructions by providing the vaporizer or retort with a reservoirdisposed to retain a body of liquid fuel which is vaporized by the heatof the burner and the gases therefrom pass downward through a heatedpassage to the burner openings, together with means for controlling thefeed of the liquid fuel to said reservoir.

A further object Vof the invention is to provide an improved form ofburner in which the Lignition orifice is normally closed so as to createa proper pressure of the gaseous fuel in the retort and burner to effectthe most efficient form of fiame at the burner openings andautomatically govern the flow of fuel therethrough.

Other and further objects and advantages of the invent-ion will behereinafter set forth and the novel features thereof defined by theappended claims.

Serial No. 618,001.

In the drawing:

Figure 1 is a perspective of the burner.

Figure 2 thereof.

Lilie numerals refer to like parts in the several figures of thedrawing.

The numeral 10 designates the burner member which may be of any desiredsize or configuration and is provided at its base with the usual primingpan or tray 11 for the initial heating of the burner and retort.

This burner is provided at its base with a chamber 12 which communicateswith a series of openings 13 discharging into burner seats 14 depressedbelow the upper surface of the burner and provided with ball valves 15which normally close the outlet from the openings 13 but are raised whenthe pressure of the gaseous fuel becomes suiiicient so as to secure afeed and flame of a spray character entirely surrounding the valvemembers, as distinguished from a jet flame produced by the usual orificeor opening. v

lThe burner is further provided with a central opening 16 into which atubular feed passage or pipe 17 is threaded such pipe being in fullcommunication with the chamber 12 at its lower end. Y

A vaporizing chamber vor retort 18k is secured at the upper portion ofthe feed pipe 17 by means of a threaded collar 19 at thek underside ofthe retort. The upper face'20 of this retortI is substantiallyhorizontal to present a plane surface and the side walls 21 thereof areinclined inwardly. From the base of these walls the bottom 22 of theretort is inclined upward toward the collar 19 and is of a substantiallyconical character.v In the present instance it is shown as convex whichprovides a reservoir 23 at the base of the retort adapted at all timesto contain a body of the liquid fuel which is in direct contact with thehighly heated base 22. Any desired means may be provided to feed theliquid fuel to this reservoir a preferable form being a feed pipe 24extending through the heated pipe 17 and deflected laterally at its iipper end 25 to discharge downwardly at 26 into the reservoir. Thisliquid feed pipe may be supported by the burner and is here shown aspassing through a collar 27 of the burner base and provided with acontrolling valve 28 by which the feed of the liquid fuel to is anenlarged vertical section the reservoir may be governed and controlledto prevent an excess of liquid therein which would tend to escape intothe burner.

In `the operation of the invention the burner is started by the usualpreliminary heating from the priming pan and the vapors passing from thesurface of the fuel in the reservoir feed downward into the chamber ofthe burner until sufficient pressure is secured to permit their escapeabout the ball valves at which time the burner itself is ignited andmaintains the continued operation by highly heating the base of theretort and also the side walls thereof. The conical form of this basetends to retain the heatfrom the burner in contact therewith and also topermit the escaping` heat to contact with the side walls of the retortso as to secure the most eiiicient and extended area of hea-tingsurface.

The construction herein presented contemplates the feeding of the fuelto the reservoir of the retort as distinguished from the direct flowagainst a heated wall thereof and thus secures a vaporization from thesurface of the fuel. These gases in passing downward through the vaporfeed pipe are superheated which tends to increase the pressure in theburner chamber and effect a mosteiicient form of spray at the ignitionopenings.

While the details of this invention have been specifically shown anddescribed, still it is not confined thereto as changes and alterationsmay be made therein without departing from the spirit of the inventionas defined by the appended claims.

What I claim is: A

l. An oil burner comprising a burner member, a vaporizer member havingits lower wall inclined downwardly from a central opening to form areservoir for liquid fuel of outwardly increasing depth and extendedover the burner member to be heated thereby, a central vertical vaporpassage extending downwardly from said opening to the burner, and a fuelfeed pipe disposed in said passage and discharging at its upper end intosaid reservoir.

2. An oil burner comprising a burner member, a vapor feed conduitextending upward therefrom, a. vaporizing retort disposed over thedischarge from said feed and provided with a substantially convex baseforming a reservoir inclining downwardly from the center and increasingin depth outward from said conduit, and means for feeding liquid fuel tosaid reservoir through said vapor conduit.

3. An oil burner comprising a burner member having a chamber at itsbase, a vapor feed pipe extending upward from said chamber, a vaporizingretort mounted upon the upper end of said pipe and p rovided withinwardly inclined side walls merging into a convex base portion disposedto provide a fuel reservoir at the basev of the vaporizer, and a liquidfeed pipe extending through said vapor feed and having a defiected upperend to discharge downwardly into said reservoir.

l An oil burner comprising a burner member provided with a chamberhaving discharge openings communicating with recesses in the upper faceof the burner, ball valves disposed in said recesses to automaticallyclose the discharge openings, and a vaporizing member arrangedto beheated by said burner and communicating with the chamber therein.

5. An oil burner comprising a burner member having a chamber at its basewith ignition o riiices extending therefrom to seats in the upper faceof said burner, ball members disposed in said seats to control saidorifices, a vapor passage extending upward from said burner, a retortcarried by said passage and having its base overhanging said burner, andmeans for feeding fuel to said retort.

6. An oil burner comprising a burner member having a chamber at its basewith ignition orifices extending therefrom to seats y in the upper faceof saidburner, ball mem-y bers disposed in said seats to control saidorifices, `a vapor passage extending upward from said burner, a retortcarried by said passage and having its base overhanging said burner,said retort having at its base a reservoir for liquid fuel, and a feedpipe within the vapor feed discharging into said reservoir.

In testimony whereof I affix my signature.

ARTHUR G. SLOCUM-

